Molecular Vision: Niggel, Mol Vis 2025; 31:297-304. Table 1

Table 1. The samples were selected to represent an overall diverse array of fixation protocols, but all shared a variation of glutaraldehyde primary fixation, osmium tetroxide secondary and/or tertiary fixation and Araldite, EPON or Poly/Bed embedding.

Sample	Species	Tissue	Year fixated	Primary Fixation	Secondary fixation	Tertiary fixation	Infiltration/Embedding
CLF1	Canine	Retina	1993	Glutaraldehyde, Formaldehyde, Sodium Cacodylate	Glutaraldehyde, Osmium Tetroxide in Sodium Cacodylate	Osmium Tetroxide in Sodium Cacodylate	EPON 812
CLF2	Canine	Retina	1996	Glutaraldehyde, Formaldehyde, Sodium Cacodylate	Glutaraldehyde, Osmium Tetroxide in Sodium Cacodylate	Osmium Tetroxide in Sodium Cacodylate	Poly/Bed 812
CLF3	Canine	Retina	1981	Glutaraldehyde, Sodium Cacodylate	Veronal acetate buffered Osmium Tetroxide	n/a	EPON 812
CLF4	Canine	Cornea	1986	Glutaraldehyde, Formaldehyde, Sodium Cacodylate	Glutaraldehyde, Osmium Tetroxide in Sodium Cacodylate	Osmium Tetroxide in Sodium Cacodylate	Poly/Bed 812
CLF5	Canine	Retina, Cornea	1985	Glutaraldehyde, Sodium Cacodylate	Osmium Tetroxide in Sodium Cacodylate	n/a	Poly/Bed 812
MR1	Non-human primate	Retina	1976	Glutaraldehyde, Sodium Cacodylate	Veronal acetate buffered Osmium Tetroxide	n/a	Araldite
MR2	Non-human primate	Retina	1976	Glutaraldehyde, Sodium Cacodylate	Veronal acetate buffered Osmium Tetroxide	n/a	Araldite
MR3	Non-human primate	Retina	1976	Glutaraldehyde, Sodium Cacodylate	Veronal acetate buffered Osmium Tetroxide	n/a	Araldite